The following annual are incurred in respect of a machine in a shop where manual labour is almost nil and where work is done by means of five machines of exactly similar type and specification: $ 1. Rent and rates (proportional 4,800 to the floor space occupied) for the shop 2. Depreciation on each machine. 500 3. Repairs and maintenance for the machines. 1,000 4. Power consumed (as per meter) @ 5 paise per unit for the shop 3,000 5. Electric charges for lights in the shop. 540 6. Attendants: There are two attendants for the live machines and they are each paid $60 per month 7. Supervision: For the five machines in the shop there is one supervisor whose emoluments are $250 p.m. 8. Sundry suppliers such as lubricantsnts, cotton waste, etc., for the shop. 540 9. Hire-purchase instalment payable for the machine 1,200 The machine uses 10 units of power per hour Calculate the machine hour rate for machine for the year